The most common and most likely answer to this crossword clue is the 8 letter word LITERACY
L
I
T
E
R
A
C
Y
More clues leading to the result LITERACY
- Healthy and vigorous education?
- With reduced fat and sugar + 7 = two Rs (8
- French article full of appeal with ribald writer’s skill
- Learning to be saucy following diet?
- Select group head ignored with exciting part of school curriculum
- Not too stodgy, risqué reading
- Revised article and said why it’s required for readers
- . Component of education that's less serious and ribald
- Switched electrically, isolated cell shows a measure of human development
- Ability to read in light that is blue
Buddy explains!

The straight part
We know that "measure of human development" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case measure of human development = literacy.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does LITERACY mean?
LITERACY noun- The ability to read and write.
- Understanding of something (ex. computer literacy).